UNISONIC TECHNOLOGIES CO., LTD L1131C Preliminary CMOS IC

Transcription

1 UNISONIC TECHNOLOGIES CO., LTD L1131C Preliminary CMOS IC LOW NOISE 150mA LDO REGULATOR DESCRIPTION The UTC L1131C is a typical LDO (linear regulator) with the features of High output voltage accuracy, low supply current, low ON-resistance, and high ripple rejection. During normal operation of UTC L1131C, the dropout voltage is very low, and the response of line transient and load transient are very well. Inside each UTC L1131C, there re many functions which can be seen in the block figure, for example, a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit, and a chip enable circuit. The UTC L1131C can be used as an ideal of power source for hand-held communication equipment, such as cameras, VCRs, camcorders and other battery-powered equipment. FEATURES * Ultra Supply Current: 75µA(typ.) * Standby Mode: 0.1µA(typ.) * Very Low Dropout Voltage: OUT =150mA, V OUT =2.5V * Ripple Rejection: 70dB(typ.)@f=1kHz 60dB(typ.)@f=10kHz * Temperature-Drift Coefficient of Output Voltage: ±100ppm/ C(typ.) * Well Line Regulation: 0.02%/V(typ.) * Output Voltage Accuracy: ±2.0%(typ.) * Internal Fold Back Protection Circuit * C IN =C OUT =1µF or more (Ceramic capacitors) are recommended to be used with this IC ORDERING INFORMATION Ordering Number Pin Assignment Package Packing Lead Free Halogen Free L1131CL-xx-AF5-R L1131CG-xx-AF5-R SOT-25 I G C N O Tape Reel Note: Pin Assignment: I:V IN O:V OUT G:GND C:CE N:NC 1 of 6 Copyright 2011 Unisonic Technologies Co., Ltd

2 MARKING PACKAGE VOLTAGE CODE MARKING 5 4 SOT-25 20:2.0V 25:2.5V HXXCG G: Halogen Free L: Lead Free Voltage Code PIN DESCRIPTION PIN NO PIN NAME DESCRIPTION 1 V IN Input pin 2 GND Ground pin 3 CE Input pin for chip enable, high means enable the chip. 4 NC No connection 5 V OUT Output pin UNISONIC TECHNOLOGIES CO., LTD 2 of 6

3 BLOCK DIAGRAM V IN V OUT - + Reference Voltage Current Limit CE GND UNISONIC TECHNOLOGIES CO., LTD 3 of 6

4 ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Input Voltage V IN 6.5 V Input Voltage (CE Pin) V CE 6.5 V Output Voltage V OUT -0.3~V IN +0.3 V Output Current I OUT 200 ma Power Dissipation P D 420 mw Junction Temperature T J +125 С Operating Temperature T OPR -40 ~ +85 С Storage Temperature T STG -55 ~ +125 С Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS L1131C-2.0V PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN = Set V OUT +1V, 1mA I OUT 30mA V Input Voltage V IN 6.0 V Load Regulation V IN = Set V OUT +1V ΔI 1mA I OUT 150mA mv OUT Output Current I OUT V IN V OUT = 1.0V 150 ma Supply Current I SS V IN = Set V OUT +1V, I OUT = 0mA μa Supply Current (Standby) I ST-BY V IN = Set V OUT +1V V CE = GND μa Short Current Limit I LIMIT V OUT = 0V 40 ma CE Input Voltage High V CEH 1.5 V IN V Low V CEL V Output Noise en BW = 10Hz ~ 100kHz 30 µvrms CE Pull-down Resistance R PD MΩ Ripple Rejection RR Ripple 0.5Vp p V IN V OUT = 1.0V, I OUT = 30mA f=1khz 70 db f=10khz 60 db Dropout Voltage V D I OUT =150mA V Line Regulation ΔV Set V OUT +0.5V V IN 6.0V, I OUT =30mA %/V Output Voltage Temperature Coefficient On Resistance of Nch for Auto Discharge IN ΔV OUT ΔT I OUT = 30mA -40 C T OPR 85 C ±100 ppm/ С R LOW V CE = 0V 60 Ω UNISONIC TECHNOLOGIES CO., LTD 4 of 6

5 ELECTRICAL CHARACTERISTICS(Cont.) L1131C-2.5V PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT V IN = Set V OUT +1V, 1mA I OUT 30mA V Input Voltage V IN 6.0 V Load Regulation ΔI V IN = Set V OUT +1V, 1mA I OUT 150mA mv OUT Output Current I OUT V IN V OUT = 1.0V 150 ma Supply Current I SS V IN = Set V OUT +1V, I OUT = 0mA μa Supply Current (Standby) I ST-BY V IN = Set V OUT +1V, V CE = GND μa Short Current Limit I LIMIT V OUT = 0V 40 ma CE Input Voltage High V CEH 1.5 V IN V Low V CEL V Output Noise en BW = 10Hz ~ 100kHz 30 µvrms CE Pull-down Resistance R PD MΩ Ripple Rejection RR Ripple 0.5Vp p f=1khz 70 db V IN V OUT = 1.0V, I OUT = 30mA f=10khz 60 db Dropout Voltage V D I OUT =150mA V Line Regulation ΔVIN Set V OUT +0.5V V IN 6.0V, I OUT = 30mA %/V Output Voltage ΔV OUT Temperature Coefficient ΔT I OUT = 30mA, -40 C T OPR 85 C ±100 ppm/ С On Resistance of Nch for Auto Discharge R LOW V CE = 0V 60 Ω UNISONIC TECHNOLOGIES CO., LTD 5 of 6

6 TEST CIRCUIT IN I SS V IN CE UTC L1131C-xx GND V OUT OUT 1.0µF 1.0µF TYPICAL APPLICATION CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD 6 of 6